Car-coupling



D. Y. WILSON l N0. 396,447. Patented Jan 22, 1889.

D; Y; WILSON.

N0. 396,447. Patented Jan. 22, 1889.

` UNITED STATES Trice.-

ATENT DAVID Y. IVILSON, OF GUM TREE, ASSIGNOR OF ONE-HALF TO ADAMl P. REID, OF PARKESBURG, PENNSYLVANIA.

CAR-COUPLING.

PECFCATION forming part of Letters Patent No.l 396,447, dated January 22, 1888.' Application filed June 4, 1888. Serial No. 276,001i (No model.)

To afZZ whom it 71mg/ concern:

Be it known that I, DAVID Y. VILS'ON, a citizen of the United States, residing at Gum Tree, in the county of Chester and State of Pennsylvania, have invented new and use-y ful Improvements in Car-Couplings, of which the following is a specification.

The invention relates to improvements in car-couplings.

The object of the present invention is to simplify and improve and cheapen the construction of twin-jaw car-couplings andrender the operation of coupling more positive and reliable.

The invention consists in the novel combination and arrangement of the parts hereinafter fully described, illustrated in the accompanying drawings, and pointed out in the claim hereto appended.

In the drawings, Figure l is a perspective view of a car-coupling constructed in accordance with this invention and illustrating the position of the parts when coupled. Fig. 2 is a horizontal longitudinal sectional view of the coupling shown in Fig. 1. Fig. is a vertical longitudinal sectional view showing the coupling-pin elevated and the position of parts preparatory to coupling. Fig. 4 is a side elevation of a modification of the invention. Fig'. 5 is a vertical longitudinal sectional view showingthe construction of the casing, which prevents the pin heilig separated from the coupler-head. Fig. i3 is a vertical longitudinal sectional view of a modification of the invention, in which a square coupling-pin is employed. 1

A designates a coupler-head adapted to be secured to the draw-bar of a car, and provided in its forward or outer end with a transverse opening', c., in which hinged a locking-tongue, B, by means of a pi ntle, C, which passes through the parts at one corner of the coupler-head A.

The locking-tongue B has its portion that lies forward of the pintle O formed into a hook, Z), which is designed to engage a twin tongue of a similar coupling' on the adjacent end of another car when it .is desired to couple two cars. The portion which lies back of the pintle C, and which is within the transc'urved and is flat upon its upper face to provide a support for the coupling-pin D to hold said pin in an elevated position preparatoryT to coupling. The flattened portion of the locking-tongue is provided with a concavity, b4, which forms a pin-seat, and the pin when. elevated bears upon the locking-ton gue, which is held steady and is prevented from shaking and moving from side to side when uncoupled.

The coupling-pin D, which may be constructed either circular or square in cross-section, as I have illustrated in the drawings, passes through the pin-holes a', formed in the coupler-head A, and -when the cars are coupled it also rests in a' pin-notch, b', formed in the front edge of the rear portionof the lockingtongue B. These pin-holes c and the pinnotch b conform to the configuration of the coupling-pin D and are constructed either square or round, as a square or round pin is employed.

The coupling-pin D is held in an elevated position preparatory to coupling, in which position it rests upon the rear portion of the locking-tongue, which forms a gravity-support, and when two cars come together the rear portion of the locking-tongue B is forced backward, and the support being withdrawn from the pin D the pin falls in front of the rear portion of the locking-'tongue in the pinnotch b and prevents forward motion of the same. Simultaneously with the backward motion of rear portion of the locking-tongue the hook is thrown inward and engages a similar' hook on the adjacent car, whereby the cars are coupled.

To prevent the rear porticn'of the couplingtongue B coming too far forward and allowing the Coupling-pin to drop behind it, the rear portion may be elongated, and the eX- treme end, b2, comes in contact with the portion c?, the front wall of Athe transverse opening of the coupler-head. The portion CL2 closes the transverse opening a in the couplerhead A and limits the forward motion of the .rear portion ot' the locking-tongue B.

Instead of increasing the length of the rear portion of the locking-tongue B, the forward portion or hook, Z), may be constructed to form the shoulders b3 which strike against the side verse opening c of the coupler-head A, is of the coupler-head and prevent a too-far- IOO forward motion of the rear portion of the lockin `g-tongue.

The coupling-pin D is retained in position and prevented separating:r from the couplerliead byprovidingapin which passes through the coupling-pin and projects upon both sides and lies across the pin-opening a to keep the coupling-pin 'from fallin g through. A `guard, E, consisting,` of a piece of metal bent into aproximately U shape, and having its ends turn ed outward to provide means for securing it to the coupler-head A, is placed in position, and the top of the pin rests and is steadied in an opening, e ,formed in the top of the `guard E, and the pin (l prevents the withdrawal of the coupler D.

I have illustrated in Figs. 4 and 5 of the accompanying drawings a coupling-pin having a square head, which slides up and down in a rectangular casing, F, that is secured to the top of the coupling-head A. The upper edeesj, of the casing are bent over to keep the coupling-pin D within it.

From the foregoing description and the accompanying drawings the construction, operation, and advantages of the invention will readily be seen, and I desire it to be understood that I do not limit myself to the precise details of construction herein shown and dein its forward movement by the front wally thereof, and having its rear portion flattened to afford a gravity-support, and provided upon its upper face with a concavity forming` a pinscat and on its front edge with a pin-notch, of a coupling-pin adapted to be supported by the rear portion of the locking-tongue and rest in the said concavity, forming a pin-seat to hold the locking-tongue in the proper posi- .tion preparatory for coupling, and fallin front of said tongue in the pin-notch when the support is withdrawn, substantially as described.

In testimony that I claim the foregoing as my own I have hereto aixed my signature in presence of two witnesses.

p DAVID Y. WILSON.

Witnesses:

J. H. SIGGERS, E. G. SIGGERs. 

